Patents are a useful form of information, but the usual indexes, abstracts,
etc do not appear to exist in Norfolk, although copies used to be deposited
at the Yarmouth Public Library until it was bombed during WW2 and sadly
reparation for this grievous loss was not sought. Presumably, prior to the
genetic modification of crops the inhabitants of Norfolk did not invent anything.
Most of the information on patents has had to be gleaned from secondary sources
or from rare visits to the British Library, but now greater use is being
made of the Internet and where pdf files exist this may be regarded as comparable
with seeing the original documents, or in official indexes to them.

In general only British patents are being incorporated "at present". Therefore,
the user of this website must assume that all patents are British unless
otherwise identified.